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Manufacturing method of aluminum, titanium and boron alloy rod

A technology of aluminum-titanium-boron and alloy rods, which is applied in the field of preparation of aluminum-titanium-boron alloy rods, can solve the problem of not involving aluminum-titanium-boron alloy rods, which cannot meet the requirements of semi-continuous casting and continuous casting and rolling production of pure aluminum and aluminum alloys, powdered The use of refiner is inconvenient and other problems, to achieve the effect of small size, fine grain structure, and avoid trachoma

Active Publication Date: 2015-09-30
GUANGDONG INST OF NEW MATERIALS
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0009] Although the above-mentioned patents all involve the preparation of refiner alloy powder by atomization method, none of them involve the preparation of aluminum-titanium-boron alloy rods, and the use of powdered refiner is very inconvenient and cannot meet the semi-continuous requirements of pure aluminum and aluminum alloys. The needs of casting and continuous casting and rolling production

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  • Manufacturing method of aluminum, titanium and boron alloy rod
  • Manufacturing method of aluminum, titanium and boron alloy rod
  • Manufacturing method of aluminum, titanium and boron alloy rod

Examples

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Embodiment 1

[0035] The present invention is used to prepare aluminum-titanium-boron alloy rods with 5% Ti element content and 1% B element content. Extruder, the preparation method is as follows:

[0036] Step 1: Heat and melt the aluminum ingot in a medium-frequency induction furnace and raise the temperature to 875°C, then add 25% potassium fluorotitanate and 11.5% potassium fluoroborate by the mass of the aluminum ingot, stir for 80 minutes, and remove the surface of the alloy liquid the scum to obtain the aluminum-titanium-boron alloy liquid;

[0037] The second step: transfer the aluminum-titanium-boron alloy liquid to the atomizing powder making machine, atomize the aluminum-titanium-boron alloy liquid into powder under the protection of nitrogen, the atomization temperature is 810°C, and the atomization nitrogen pressure is 2.5MPa;

[0038] Step 3: Screen the aluminum-titanium-boron alloy powder with a 100-mesh vibration screening machine to obtain aluminum-titanium-boron alloy po...

Embodiment 2

[0051] The aluminum-titanium-boron alloy rod with 4.5% Ti element content and 0.8% B element content is prepared by the present invention, and the main equipments are medium frequency induction melting furnace, atomizing pulverizer, vibration screening machine, cold isostatic pressing machine and horizontal Extruder, the preparation method is as follows:

[0052] Step 1: Heat and melt the aluminum ingot in an intermediate frequency induction furnace and raise the temperature to 850°C, then add 22.5% potassium fluorotitanate and 9.2% potassium fluoroborate by the mass of the aluminum ingot, stir for 60 minutes, and remove the surface of the alloy liquid the scum to obtain the aluminum-titanium-boron alloy liquid;

[0053] The second step: transfer the aluminum-titanium-boron alloy liquid to the atomizing powder making machine, atomize the aluminum-titanium-boron alloy liquid into powder under the protection of nitrogen, the atomization temperature is 800°C, and the atomization ...

Embodiment 3

[0060] The present invention is used to prepare aluminum-titanium-boron alloy rods with a Ti content of 5.5% and a B content of 1.2%. Extruder, the preparation method is as follows:

[0061] Step 1: Heat and melt the aluminum ingot in an intermediate frequency induction furnace and raise the temperature to 900°C, then add 27.5% potassium fluorotitanate and 13.7% potassium fluoroborate by the mass of the aluminum ingot, stir for 90 minutes, and remove the surface of the alloy liquid the scum to obtain the aluminum-titanium-boron alloy liquid;

[0062] The second step: transfer the aluminum-titanium-boron alloy liquid to the atomizing powder making machine, atomize the aluminum-titanium-boron alloy liquid into powder under the protection of nitrogen, the atomization temperature is 820°C, and the pressure of atomized nitrogen is 3MPa;

[0063] Step 3: Screen the aluminum-titanium-boron alloy powder with a 100-mesh vibration screening machine to obtain aluminum-titanium-boron all...

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Abstract

The invention discloses a manufacturing method of an aluminum, titanium and boron alloy rod and belongs to the field of refiner material manufacturing. The method is characterized in that the aluminum, titanium and boron alloy rod is formed by aluminum, titanium and boron alloy powder in an extrusion mode. The method includes the following steps that aluminum, titanium and boron alloy liquid is prepared and atomized into powder, the aluminum, titanium and boron alloy powder is screened, cold isostatic pressing is performed on the aluminum, titanium and boron alloy powder so that preformed blanks can be formed, vacuum degasing and heating are performed on the preformed blanks, and the preformed blanks are extruded to form the aluminum, titanium and boron alloy rod. According to the method, the aluminum, titanium and boron alloy rod is manufactured in a powder hot extrusion method, and the problems that the TiAl3 phase size of a traditional continuous casting aluminum, titanium and boron alloy rod is large and TiB2 particles aggregate are solved. The TiAl3 phase size of the aluminum, titanium and boron alloy rod manufactured with the method is small and TiB2 particles are evenly distributed, and higher grain refinement capacity is achieved.

Description

technical field [0001] The invention belongs to the field of preparation of refiner materials, and in particular relates to a preparation method of an aluminum-titanium-boron alloy rod. Background technique [0002] Al-Ti-B alloy rod is an essential refining agent in semi-continuous casting and continuous casting and rolling production of pure aluminum and aluminum alloy. The method of use is to continuously add Al-Ti-B alloy rod to pure aluminum and aluminum alloy In the launders of semi-continuous casting and continuous casting and rolling, refine the grains of pure aluminum and aluminum alloy semi-continuous casting ingots and continuous casting and rolling slabs, and improve the plastic processing performance of ingots and slabs. [0003] The existing aluminum-titanium-boron alloy rods are mainly produced by the continuous casting and rolling process, that is, the aluminum-titanium-boron alloy liquid is directly continuously cast and rolled into aluminum-titanium-boron a...

Claims

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Application Information

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IPC IPC(8): B22F3/20B22F9/08
Inventor 郑开宏王顺成宋东福农登甘春雷
Owner GUANGDONG INST OF NEW MATERIALS
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